Xbox og capacitors in good condition?

[Max320]

Yesterday i added a 500 gb sata hard drive to my xbox and whilst i was in there i checked the condition if the capacitors which all seemed not bloated or stained is this even possible? All the saves were dated back to 2005 and the xbox looked as if it was in an attic for a long time as inside their were cobwebs and dust and layerd dust in the cracks of the case which i still can't clean. The xbox is 1.6.